Obama Company sells its product for $30 per unit. During 2020, it produced 30000 units and sold 15000 units (there was no beginning inventory). Costs per unit are: direct materials $6, direct labour $5, and variable overhead $4. Fixed costs are: $420000 manufacturing overhead, and $120000 selling and administrative expenses. Ending inventory under variable costing is

$225000.

$450000.

$645000.

$765000.